stuttering while on high way?

[tturbolife1]

interesting symptoms never had a problem like this one. its random stuttering while my foot is steady on the gas pedal for a while then try to boost the rpms slowly move up and it feels like im running on 2 cly, my aem wideband goes all the way to ---- lean. i thought it could be the wires and spark plugs and i changed them, still happends, i took this video a while ago there some things that i thought could be causes to my problemYouTube - eclipse problem#2

this is how i fix it when it starts to stutter i have to take it out of gear and wait till it idles then put it back into gear and it drives fine . also if i stay at 14-15 afr on my wideband it doesnt seem to happen until i start to push the gas pedal down. it seems like it only happends on the highway because around town im constantly stopping and starting. this happend a while back then stopped and now its starting to happen again. i dont know the reason i was thinking its the coil pack its a 6 bolt swap 21vac no leaks everything is good it was running fine bad tps? bad isc? suggestions ?

i also read a post on a bad isc and wondering if that would cause my symptoms and also my older post of my rpms dropping on a hot drive from 1500 idle to 740 rpms?

 

[agentorange313]

If you wideband is going lean it inst a spark issue, that means there is a lack of fuel. With out fuel the system will run lean.

Check your injectors, see if there is resistance running to your injectors. If you had oscilloscope you can check the injectors and see if they are functioning properly.

Also, I see you have a new fuel pump, did you rewire the system for greater amperage?


Are you still using the stock 2g mas for tuning?

Main issue, if you are lean, then you don't have fuel, its not a spark issue.

 

[tturbolife1]

injectors dont have over 1500miles on it and neither does the fuel pump i have a greddy FPR and its set at 43psi and i didnt rewire the 255lph walbro. and my safc settings have been the same from the time i got it back from the tuning shop. if i leave it at idle it almost sounds like it pops out of the exhaust

and also the fuel fitler has around 500miles on it.

yes im using stock 2g mas, the reason i thought it was spark issue it because it feels like its only running on 2 cly and it kinda smells like gas

 

[tturbolife1]

anyone have any other ideas or suggestions?